"Research looked at emotional reactions to infidelity and found that men get homicidal and suicidal and women feel undesirable and insecure (Shackelford, LeBlanc, & Drass, 2000)."
"The reason why some people think that certain statistical tests allow causal inferences is because historically certain test (e.g. ANOVA, t-test, etc.) have been used to analyse experimental research, whereas others (e.g. regression, correlation) have been used to analyse correlational research (Cro"
"In a normal distribution the values of skew and kurtosis are 0 (i.e. the tails of the distribution are as they should be). If a distribution has values of skew or kurtosis above or below 0 then this indicates a deviation from normal"
"The standard deviation of sample means is known as the standard error of the mean (SE)"
"A confidence interval for the mean is a range of scores constructed such that the population mean will fall within this range in 95% of samples. The confidence interval is not an interval within which we are 95% confident that the population mean will fall."
"Fisher (1925/1991) (Figure 2.9) describes an experiment designed to test a claim by a woman that she could determine, by tasting a cup of tea, whether the milk or the tea was added first to the cup. what about if we complicated things by having six cups? There are 20 orders in which these cups can b"
"test statistic = variance explained by the model / variance not explained by the model = effect / error The reason why this ratio is so useful is intuitive really: if our model is good then we'd expect it to be able to explain more variance than it can't explain. In this case, the test statistic wil"